General

  • Target

    805bc38aa1a5c30fe18cdc3bf46e4a4a1e43a8f0499f2f2b16bca72395a41539

  • Size

    2.0MB

  • Sample

    240525-d9jjsadc7w

  • MD5

    0bf46dac0e557ddfd400618c989f3f02

  • SHA1

    6454812b7b9e7858017d87f851ca0c2094a07f2a

  • SHA256

    805bc38aa1a5c30fe18cdc3bf46e4a4a1e43a8f0499f2f2b16bca72395a41539

  • SHA512

    6451648cabb09fcba9da080dac892d3d3fdc21341359e73374aeea820ca34fe7b7de8c170762751eb1d17ba64a4938278d684047f8c7655108b394bc23f7de07

  • SSDEEP

    49152:s4K3x1vUmJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18mtIuoITsdZ

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://steamcommunity.com/profiles/76561199689717899

https://t.me/copterwin

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0

Targets

    • Target

      805bc38aa1a5c30fe18cdc3bf46e4a4a1e43a8f0499f2f2b16bca72395a41539

    • Size

      2.0MB

    • MD5

      0bf46dac0e557ddfd400618c989f3f02

    • SHA1

      6454812b7b9e7858017d87f851ca0c2094a07f2a

    • SHA256

      805bc38aa1a5c30fe18cdc3bf46e4a4a1e43a8f0499f2f2b16bca72395a41539

    • SHA512

      6451648cabb09fcba9da080dac892d3d3fdc21341359e73374aeea820ca34fe7b7de8c170762751eb1d17ba64a4938278d684047f8c7655108b394bc23f7de07

    • SSDEEP

      49152:s4K3x1vUmJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18mtIuoITsdZ

    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks